Get some mushrooms, everything else is going to be more risky and a lot more like a hard drug use situation experientially.

You can grind up mushrooms and steep them like a tea, or just eat them as-is. It's nothing like using drugs, more like consuming a food that has an odd effect then just goes away once it's passed through.

Also, start small, it's useful for acclimating to the whole experience. And you might find what you're looking for without even taking a full psychedelic dose. Microdosing shrooms is still quite active, much like drinking a cup of coffee is.

I’ve heard that you can also grow mushrooms at home. Look up PF Tek.

You make it yourself and its a quite easy process. Look up dmt tek

DMT occurs naturally in a variety of plants in high-enough concentrations for economical extraction.

Traditionally you would do an acid/base organic extraction. But for most purposes, you can STB (straight to base) with a bit of lye (i.e. canning supply) and an organic solvent like naphtha.

Obtaining powered plant material is easy, usually available on eBay or else independent sites.

You can buy pre-cursors (or known as analogs) like 4-AcO-DMT online from Lysergi. They are sold as a 'research chemical', however they metabolize into psilocin so it is indistinguishable to psilocybin. Obviously you should take every pre-caution before ingesting any substance by doing your own research, and looking into the authenticity of the supplier.